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physical nature     
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  物理本质
     It points out that the physical nature of the superconducting diamagnetism orign is that the ν SC (T) can reach the maximum (about 10 3-10 4ms -1 ).
     指出超导抗磁性起源的物理本质是 ,νSC(T)很大 (约为 1 0 3 - 1 0 4 ms- 1) ,νSC(0 )的上限是 0 K时电子 Fermi速度 (数量级为1 0 5ms- 1) ;
短句来源
     The distribution mode of arc current density determines the distribution modes of both arc heat flux and arc pressure, which are the basis to understand the physical nature of welding arc and to establish the mathematical model of welding processes.
     电弧电流密度分布决定着电弧热流密度、电弧压力的分布 ,是了解焊接电弧物理本质 ,建立焊接过程数学模型的基础 .
短句来源
     We prepared Y_2O_3:Ho/Yb nano-particles by a solution combustion procedure and Gd_2O_3:Er/Yb nanowires as well as nanoslices by a hydrothermal method. The thesis was carried out with the purpose of exploring the luminescent characterization of nano-materials codoped with rare earth ions and finding the physical nature.
     本文以Ho、Er 两种重要的稀土元素为研究对象,以Y_2O_3和Gd_2O_3两种稳定的氧化物为掺杂基质,分别采用燃烧法和水热法成功地制备了Y_2O_3:Ho/Yb纳米颗粒和Gd_2O_3:Er/Yb 纳米片、纳米线,目的是探索稀土掺杂纳米材料的发光特性,并揭示其物理本质
短句来源
     The different influences of the insulation grain boundaries and the junction barnes on the C-V charaeteristics were indicated and the physical nature of the C-V and T-V correlation was analysed.
     指出了绝缘晶界和结势垒对C-V特性的不同影响,分析了高偏压下C-V和I-V特性相关性的物理本质.
短句来源
     With the Kuperus-Raadu model to describe the interaction between a prominence bud the background magnetic field, and Lundquist field to describe the distribution of current and magnetic field inside the prominence, the observational data of eruptive prominence on August 18, 1980 is systametically analysed and the physical nature in its eruptive process is discussed. The results show: (1) the physical cause of prominence to erupt is the kink-instabity of Lundquist field;
     用Kuperus-Raadu模型描述日珥与背景场的互作用,Lundquist场描述日珥电流和磁场的分布,综合分析1980年8月18日爆发日珥的观测资料,讨论了该日珥爆发过程的物理本质.结果表明:(1)爆发日珥的物理原因是由于Lundouist场的kink不稳定性;
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  物理实质
     The physical nature of the reaction is revealed by analysing the intramolecular charge transfer as the tautomeric reaction is occurring. The activation barrier of the forward reaction is 168.87kJ mol~(-1), while it is 135.02 kJ mol~(-1) for the backward reaction.
     限定分子体系在同一平面,用Powell法优化过渡态几何构型,计算所得正反应活化势垒为168.87 kJ mol~(-1),逆反应活化势垒为135.02 kJ mol~(-1)。 从IRC途径分析了该异构化反应的物理实质
短句来源
     Moreover,it illustrates the physical nature of two basic ways of improving vacuum degree through working out the relationship between thermodynamics function:U(internal energy),S(entropy),F(Gibbs free energy) and work of escape when the perfect gas in vacuum adsorbs and desorbs.
     通过计算真空中理想气体在物理吸附和退吸附过程中内能(U)、熵(S)、吉布斯自由能(F)等热力学函数与逸出功的关系,进而阐明了提高真空度两种基本方法的物理实质
短句来源
     Finally, a quantum correction model to threshold voltage is given, which reveals the physical nature of the influence of QME on the V th shift and gives consistent results with experiments.
     该模型准确地揭示了量子力学效应影响开启电压的物理实质 ,并给出了与实验数据吻合的结果
短句来源
     In this passage, a brief introduction to the physical nature and working methods of the micro-gravimetry made in karst cave survey.
     本文简要介绍了地面高精度重力测量技术用于岩溶洞穴探测的物理实质和工作方法。
短句来源
     Owing to the fact that the results from numerical simulations can usually guide us to explore physical nature hidden behind natural phenomena, and that it will take quite some time and big dollars to explore physical character by using experimental approaches directly, and still further some experiments could not be carried out at present because of poor experimental conditions.
     由于对光纤通信的研究往往需要以数值模拟结果为指导,且有时直接用实验的方法来研究,不仅周期长,耗资大,而且难以发现隐藏的复杂物理实质,所以解决这些问题的有效方法便是进行数值模拟。
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  物理特性
     When the mathematical model of the dispersion was obtained, we analysed some basic laws of the dispersion, represented the physical nature of these laws according to the spectral structure of the wind field and proved that the gust intensity σ_w and the scale of turbulence L are two important physical parameters upon which the dispersion depends.
     在导出描述散布的数学模型之后,分析了散布的若干基本规律,并根据风场的谱结构,阐明了这些规律的物理特性,证明了风场的阵性强度σ_w与扰动尺度L是决定散布的二个重要物理参量。
短句来源
     TCSC physics model can really reflect the physical nature of a power transmission system, and meanwhile simulate all kinds of system operation condition.
     TCSC物理模型能真实地反映实际系统的物理特性,同时又能模拟系统的各种运行条件。
短句来源
     Glass decoration is one of the growing area in screen printing industry in recent years. However the physical nature of glass makes it one of the most difficult substrates to print.
     玻璃装璜是近年来丝网印刷行业发展较快的领域之一,然而,玻璃的物理特性使其成为一种比较难于印刷的承印材料。
短句来源
     It is very important of both chemical and physical nature of fiber in dairy ration to stimulate its chewing activity and to remain the stable milk fat percentage.
     奶牛日粮纤维的化学与物理特性对于刺激其咀嚼活动和维持稳定的乳脂率十分重要。
短句来源
     In order to study the physical nature of Explosive Magnetic Flux Compression Generator(EMFCG) of cylinder-taper configuration,a code MFCG(Ⅴ) was developed. A series of models have been calculated and analyzed by using this code.
     为了研究间接馈电、两级级联柱-锥构型的爆磁压缩发生器的物理特性,发展了描述爆磁压缩物理过程的2维爆轰磁流体力学程序———MFCG(Ⅴ),并用其分析、计算了一系列模型。
短句来源
  “physical nature”译为未确定词的双语例句
     Passing through appling continuously biological organic fertilizer 3 years, the results show that:The physical nature of soil gets certain improvement, the pH drops to 3.53-5.39%, soil B D. increases from0.37% to 4.97%;
     通过连续三年的施用生物有机肥料,结果表明:土壤的物理性质得到一定的改善,其中pH下降达3.53~5.39%,容重则提高0.37%~4.97%;
短句来源
     It was determined that the static saturated adsorption capacity of wet D296R resin was 27.58 mg/mL and the adsorption was of physical nature.
     确定D2 96R湿树脂的静态饱和吸附量为 2 7.5 8mg/mL ,吸附本质为物理吸附。
短句来源
     Electronic structure of atom cluster Fe4B, taken as a tetrahedron, is calcu lated by using the self-consistent field Xα -scattered-wave method. The energy levels, contour maps and densities of states for the atom clusters Fe4 and Fe4B are analyzed and compared respectively, the effect of the B atoms on the electronic structure of atom cluster Fe4B is discussed, and some physical nature of amorphous alloy Fe80B20 is also discussed.
     利用多重散射X_α自洽场法,对取为四面体的原子团Fe_4B的电子结构进行计算,分析、对比原子团Fe_4与Fe_4B的能级分布、轨道等高线图和态密度的分布,讨论B原子加入对原子团Fe_4B的电子结构的影响,并结合讨论了非晶态Fe_(80)B_(20)等合金的一些性质。
短句来源
     The key to the determination of Q value which reflects the physical nature and state of rock lies in the determination of coefficient α at which amplitude attenuates with the distance.
     测定反映岩石物理性质和状态的Q值的关键是测定振幅随距离的衰减系数α。
短句来源
     Composition and Physical Nature of Loess in the Middle Reach of the Yellow River
     黄河中游地区黄土成份及物理力学性质研究
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  physical nature
A Hypothesis of Possible Physical Nature of Signals of Intracellular and Intercellular Synchronization of Protein Synthesis Rhyt
      
A hypothesis of physical nature of signals for intracellular and intercellular synchronization of protein synthesis rhythms is considered.
      
Physical nature of the emergence of various regions in the aggregate structure was discussed.
      
The physical nature of boundary layer phenomena is explained, and an asymptotic solution is constructed for the self-similar problem with an arbitrary number of components in the system, by using the method of matched asymptotic forms.
      
The physical nature of these features associated with the disturbance of the function of distribution over vibrational energy due to the reaction is discussed.
      
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The study of the induced flow in the vicinity of a lifting rotor in the forward flight is one of the fundamental but rather complicated problems in helicopter aerodynamics. In this paper an attempt is made to derive a practical formula for the induced velocity distribution in the lifting rotor disk plane on the basis of the generalized vortex theory. The distribution is approximated by a Fourier series to the second harmonics, and in order to facilitate integration process, two algebraic expressions are used...

The study of the induced flow in the vicinity of a lifting rotor in the forward flight is one of the fundamental but rather complicated problems in helicopter aerodynamics. In this paper an attempt is made to derive a practical formula for the induced velocity distribution in the lifting rotor disk plane on the basis of the generalized vortex theory. The distribution is approximated by a Fourier series to the second harmonics, and in order to facilitate integration process, two algebraic expressions are used to replace the complete elliptic integrals of the first and second kinds.To illustrate the physical nature of the induced velocity field a calculation is carried out for a typical distribution of the circulation, and the results for different azimuth positions are given in curves, which reflect the same general variation pattern as that of the experimental results.

直升机在前飞时,其升力桨周围的诱导速度分布是一个不易算出的问题.本文试图根据涡流理论导出的精确公式,通过简化,获得适于工程计算的近似公式.在简化过程中,把原来的表达式设法用Fourier级数来表示,但只取二阶谐波为限;同时,又找到两个代数式来代替两个椭圆积分.最后,为了提供诱导速度分布的物理图象,以典型环量载荷为例,计算了几个情况,并绘成曲线.与相应的实验数据比较,本文给果可以反映升力桨诱导速度的一般变化.

In the large-scale motion of the atmosphere there is a so-called geostrophic adaptation. This paper demonstrates that there is also a process of adaptation between the pressure and the wind field in the meso- and small-scale motion.From the scale analysis it is found that on the average in the equation of motion the term of the time derivative is one order of magnitude smaller than the main terms in the meso- and small-scale motion. Therefore it may be concluded that the motion of these scales also proceeds...

In the large-scale motion of the atmosphere there is a so-called geostrophic adaptation. This paper demonstrates that there is also a process of adaptation between the pressure and the wind field in the meso- and small-scale motion.From the scale analysis it is found that on the average in the equation of motion the term of the time derivative is one order of magnitude smaller than the main terms in the meso- and small-scale motion. Therefore it may be concluded that the motion of these scales also proceeds slowly under the condition of quasi-balanced forces just as that the large-scale motion proceeds quasi-geostrophically. If, however, in some way this quasi-balanced condition is disturbed, there must be a mechanism to bring the motion back to the quasi-balanced state. For the meso- and small-scale motion the inertia force (velocity advection), the coriolis force and the force of pressure gradient are in quasi-balanced state.The process to bring the motion to the state of quasi-balance of forces is called adaption process and the motion under quasi-balanced state is called quasi-steady process. The physical nature of these two processes is discussed in this paper. For meso-scale motion it is shown that in the adaption process D>>ζ, and in quasi-steady process D ≤ ζ, where D and ζ are respectively the divergence and the vorticity.If at certain time the quasi-balanced state is brokendown in certain limited region, further development of this motion may be calculated as an initial value problem. The computation concludes that in the initial short interval of time the meteorological elements undergo vigorous change leading to the reestablishment of the quasi-balanced state and then the motion goes into quasi-steady state.The equations of quasi-balanced condition for the meso- and small-scale motion may be written asThis suggests that for the motion of this scale P-field should be analyzed instead of height or pressure field.

在大型运动中有所谓地转适应的现象,本文研究了中小尺度运动中风场和气压场之间的适应问题。 由尺度分析可以发现:在一般中小尺度运动方程中,时间导数项较其中的各主要项小一个量极。因此可以认为中小尺度运动是在力的准平衡状态下进行缓慢的演变。当有某种原因破坏了这种力的准平衡态时,即有一种机制使运动回到准平衡来。这种准平衡态是惯性力(即速度平流)、科氏力和气压梯度力三者之间的准平衡。 由准平衡态的破坏恢复到准平衡的过程称为中小尺度的适应过程;准平衡态下的演变过程称为准常定过程。文中讨论了这两种过程中运动的物理性质。指出:对中尺度运动而言在适应过程中D>>ζ,在准常定过程中D≤ζ,这里D和ζ分别为散度和涡度。 设在某一有限的区域中,运动的平衡态受到了严重破坏,作为初值问题可以计算破坏以后运动的发展。计算结果表明:在短暂的时间内,气象要素有一急烈变化和调整,重新恢复准平衡态;时间稍长运动即进入准常定的演变。

In this paper, the random process theory is used to study the problem of the dispersion of rockets effected by the random wind in the exterior ballistics. When the mathematical model of the dispersion was obtained, we analysed some basic laws of the dispersion, represented the physical nature of these laws according to the spectral structure of the wind field and proved that the gust intensity σ_w and the scale of turbulence L are two important physical parameters upon which the dispersion depends....

In this paper, the random process theory is used to study the problem of the dispersion of rockets effected by the random wind in the exterior ballistics. When the mathematical model of the dispersion was obtained, we analysed some basic laws of the dispersion, represented the physical nature of these laws according to the spectral structure of the wind field and proved that the gust intensity σ_w and the scale of turbulence L are two important physical parameters upon which the dispersion depends.

本文应用随机过程理论,研究了火箭外弹道学中随机风场作用下,火箭弹的散布问题。在导出描述散布的数学模型之后,分析了散布的若干基本规律,并根据风场的谱结构,阐明了这些规律的物理特性,证明了风场的阵性强度σ_w与扰动尺度L是决定散布的二个重要物理参量。

 
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